Husband is wartime retired veteran who has a rare type of dementia and is bedridden. He had hospice care 1 hr a day and nurse twice a week. Spouse is caregiver with no outside help except hospice.
Here is an article I found here on Aging Care regarding Aid & Attendance. The article is 7 years old, so I don't know if there were any changes or not. It should give you some basic information.
https://www.agingcare.com/articles/vets-financial-aid-long-term-care-home-health-care-138105.htm
Oh, I found something more current, written last year.
https://www.agingcare.com/articles/va-aid-attendance-new-eligibility-rules-177294.htm